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Digital Computer Electronics

Digital Computer Electronics
The reduced form of the Boolean expression (A+B)(A+C) is:

None of these
AB+AC
A+B+C
AC+B
A+BC

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Digital Computer Electronics
The time required for a pulse to decrease from 90 to 10 percent of its maximum value is known as

rise time
decay time
binary level transition period
propagation delay
None of these

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Digital Computer Electronics
A NAND gate is equivalent to an AND gate followed by an inverter. All inputs must be _____ to get a low output

None of these
high
some low and some high
low
0's

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Digital Computer Electronics
Conversion of an octal number 1368 to hexadecimal number is

70000000000000000
5A16
50000000000000000
5D16
None of these

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Digital Computer Electronics
The memory cell of a dynamic RAM is simpler and smaller than the memory cell of a _____ RAM.

semiconductor
bipolar
volatile
None of these
static

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Digital Computer Electronics
Which of the following TTL subfamily is the fastest

high-speed TTL
schottky TTL
standard TTL
low-speed TTL
None of these

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